Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/04/2026, 12:27

General

  • Target
    lua51.dll
  • Size 175KB
  • Sample260415-pm286aes6k
  • SHA256 85d5383ba42c0b8ad8af1b13bacb643fdb080f9c589c04ecee1311f67ee5dcb9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\lua51.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\lua51.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 460
        3⤵
        • Program crash
        PID:5952
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5072 -ip 5072
    1⤵
      PID:4696

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/5072-0-0x00000000753E0000-0x000000007543B000-memory.dmp

          memory/5072-1-0x0000000000D50000-0x0000000000D9A000-memory.dmp

          memory/5072-3-0x00000000753E0000-0x000000007543B000-memory.dmp